Quincy Compressor QPHT 20 Operator's Manual
Quincy Compressor QPHT 20 Operator's Manual

Quincy Compressor QPHT 20 Operator's Manual

High temperature refrigerated dryer

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HIGH TEMPERATURE REFRIGERATED DRYER
OPERATOR'S MANUAL
QPHT 20

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Summary of Contents for Quincy Compressor QPHT 20

  • Page 1 HIGH TEMPERATURE REFRIGERATED DRYER OPERATOR‘S MANUAL QPHT 20...
  • Page 2 DATE OF PURCHASE: MODEL: SERIAL NO.: Record above information from nameplate. Retain this information for future reference.
  • Page 3: Table Of Contents

    TABLE OF CONTENTS Page General Information ........... . . Receiving –...
  • Page 4: General Information

    GENERAL INFORMATION Quincy Models QPHT-20, 40, 60, 80 and 100 High SERVICE INQUIRIES: Provide Model No., Serial No., Temperature Refrigerated Dryers are designed to cool and Operating Pressure, Inlet Temperature, Nature of Problem. remove moisture from compressed air. The units cool air in See Dryer Specification Tag located on the control panel.
  • Page 5: Disclaimer Of Warranty

    DISCLAIMER OF WARRANTY RELEASE AIR PRESSURE SLOWLY Fast moving air will stir up dust and debris, which If this unit is used to produce breathing air, the special may be harmful. Release air pressure slowly when equipment and precautions expressed in OSHA 29 CFR depressurizing your system to avoid bodily injury.
  • Page 6: Installation Instructions

    INSTALLATION INSTRUCTIONS NOTE: Improper installation methods of air inlet and air NOTE: Install brackets and support fixtures as needed to outlet piping that causes internal damage to the air dryer eliminate fatigue and vibration in the air system piping. system will void warranty. Installer should follow proper Drain Connection pipe installation practices or hire a certified plumber to Models QPHT-20 and QPHT-40 are equipped with a...
  • Page 7 refrigerant suction pressure should be within the following ranges. Model QPHT-20: 55 to 125 PSIG Model QPHT-40: 90 to 130 PSIG Model QPHT-60: 90 to 130 PSIG Model QPHT-80: 90 to 130 PSIG Model QPHT-100: 90 to 130 PSIG If the suction pressure gauge reads 0 PSIG or near 0 PSIG, contact Quincy or your Quincy dealer.
  • Page 8: Operating Instructions

    OPERATING INSTRUCTIONS Start the air dryer system by turning the switch to the Manually turn the coalescing oil filter drain stem ON position. At this time the compressor and once every 8 hours of operation, or when the sight cooling fans will start. of glass is half full of liquid.
  • Page 9: Model Qpht-40

    Model QPHT-40 Model QPHT-60/80/100 Unit Dimensions: Unit Dimensions: Length: 28” Length: 28” Width: 18” Width: 18” Height: 30” Height: 40” Flow: Flow: 40 SCFM QPHT-60: 60 SCFM QPHT-80: 80 SCFM Inlet Pressure: QPHT-100: 100 SCFM 175 PSIG (200 PSIG Maximum) Inlet Pressure: Ambient Temperature: 175 PSIG (200 PSIG Maximum)
  • Page 10: Maintenance & Adjustments

    MAINTENANCE & ADJUSTMENTS The ON/OFF switch holds a HIGH TEMP light which will turn on if the unit’s compressor system malfunctions. If the red HIGH TEMP light on this switch is illuminated, turn off and unplug the unit for 15 minutes and restart. If the light remains on after Depressurize dryer system...
  • Page 11 Condenser coil cleaning. Remove ambient filter (if equipped). Remove either the right or left side panel screws and panel. Using compressed air, blow collected dust and contamination off condenser from inside to outside. The air dryer system will not operate properly unless all panels are reinstalled Hot gas bypass valve adjustment.
  • Page 12: Service Parts

    SERVICE PARTS Model QPHT-60/80/100 Coalescing oil filter element C-60-15 Model QPHT-20 Coalescing oil filter manual drain valve Coalescing oil filter element FH-000149 C-25-10-A Moisture separator auto drain valve Coalescing oil filter manual drain valve VA-000285 VA-000761 Drain timer board Moisture separator auto drain valve EC-000486 VA-003111 (115V) ON/OFF switch power-on &...
  • Page 13: Troubleshooting

    TROUBLESHOOTING Table 1 — Troubleshooting Guide Symptoms Cause Remedy A. Moisture downstream. 1. Refrigeration compressor not a. Check electric power supply. running. b. If red light is on, call for factory service. 2. Suction pressure reads above a. Clean the air cooled condenser blue/green zone.
  • Page 14 Table 1 — Troubleshooting Guide Symptoms Cause Remedy E. Moisture is not draining. 1. Clogged solenoid valve. a. Press the PUSH-TO-TEST switch several times. b. Disconnect the drain lines to the solenoid valve and blow compressed air from outlet while pressing the PUSH-TO-TEST switch.

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